Product Description
The Stage 1 Performance Kit for 301/420cc Engines is the perfect upgrade for anyone looking to boost their engine's performance. This kit includes a high-quality air filter, air filter adapter, and a jet kit, all designed to work together to improve the power and efficiency of your engine. The air filter is made from premium materials and provides superior filtration, while the performance exhaust header improves exhaust flow for increased power and torque. The jet kit provides optimized fuel delivery to match the increased airflow, resulting in a noticeable improvement in performance. With easy installation and a perfect fit for your 301/420cc engine, this kit is a must-have for anyone looking to take their engine to the next level. Upgrade your engine's performance today with the Stage 1 Performance Kit for 301/420cc Engines!
Our Stage 1 Performance Kit is very popular and includes a K&N style high flow air filter, aluminum air filter adapter, and an upgraded drilled main jet for the carburetor. This kit is a simple but very effective upgrade over the stock air box. This kit needs to be paired with an aftermarket header for it to work properly. With the added air flow, the more rich main jet is mandatory for optimal engine performance. Filter inlet measures 2 7/16" ID and 2 7/8" OD. Includes choke hold bracket as well. Kits will ship with the air filter and air filter cover color we have in stock at the time.
Kit Includes:
- Air Filter
- Air Filter Cover (black)
- Air Filter Adapter (black or silver) w/ Choke Hold Bracket
- Either a 301 or 420 Jet
- Carburetor Gaskets
- Honda GX240 & GX270
- Predators Engines 301cc & 420cc
- Duramax 18HP Engine
Recommended Items:
- 301/420 Exhaust Gasket
- Vent Filter Kit
- 50# Valve Springs (if taking the governor out)
- Header Pipe for 301/420 Engines
#KDPRED301-420AF
Product Videos
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Product Reviews
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Stage 1 Performance Kit for 301/420cc...
Stage 1 Performance Kit for 301/420cc Engines
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Stage 1 Performance Kit for 301/420cc...
Stage 1 Performance Kit for 301/420cc Engines
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Stage 1 Performance Kit for 301/420cc...
Stage 1 Performance Kit for 301/420cc Engines
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VERY noticable...
VERY satisfied with this. Honda Engine pepped up quite a bit.
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Stage 1 kit for 301/420
I like it but I haven’t driven it yet. Just waiting to buy a torque converter.
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Stage 1 Performance Kit for 301/420cc...
Stage 1 Performance Kit for 301/420cc Engines
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Stage...
Product was delivered in a timely fashion and it all fit perfectly. I'm first time buyer , found these guys from watching red beards garage , he seemed to like their parts and service. I'll hv to agree, I'll be back for stage 2 soon
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Good Quality, No Effort to...
Went together well, other than the flange on the exhaust pipe isn’t thick enough to fit against the manifold like it should. I had to use plenty of washers to get a tight enough seal.
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Predator 420 stage one...
Everything was perfect. The customer service and time frame from ordering to the arrival of the shipment was very speedy. I am super happy with everything. The only thing I would recommend is offering the stage one kit with several breather filters included. One for the valve cover and one for the gas tank. I had to order those separately.
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Stage...
Great product no issues! 10/10